.tip {
    position: absolute;
    left: 50%;
    top: 100px;
    padding: 20px 100px;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.3);
    color: #ffffff;
    opacity: 0;
    transition: 1s ease-in;
    font-size: 20px;
    letter-spacing: 2px;
    z-index: 10000;
  }